Machine for making double-stitched gloves



MACHINE FOR MAKING DOUBLE-STITCHED GLOVES Filed April 14, 1947 2 Sheets-Sheet 1 (N VE N TO R H42 EN G/NS BERG.

ATTORNEY.

July 10, 1951 H. GINSBERG MACHINE FOR MAKING DOUBLE-STITCHED GLOVES Filed April 14, 1947 0 2 Sheets-Sheet 2 INVENTOR. HELEN 6 INS BERG.

ATTORNEY Patented July 10, 1951 UNITED STATES MACHINE FOR MAKING DOUBLE-STITCHED GLOVES.

Helen Ginsberg, New York, N. Y., assignor to G & G Glove (30., New York, N. Y., a firm Application April 14, 1947, Serial No. 741,300

This. invention relates to new and useful im. provements in a machine for sewing gloves.

The problem of torn seams on gloves has always been considered a burden to the glove manufacturer, retail outlet and consumer. While there are no figures now available, it is known that the volume of repairs fluctuate with the times. Before the war, conservative estimates placed the cost of returns at one-half of one percent of the total national sales.

In addition to the cost of repairs, there is also the inconvenience sufiiered by the consumer due to the torn seams. It can also be understood that only a small percentage of the customers go to the trouble of returning these gloves to the retail outlet for repair or credit.

An object is to produce a glove sewing machine in which the rapid operation of oscillating parts is achieved with a minimum of noise and inaccuracy of operation due to loose play in the parts.

Further and more specific objects, features, and advantages will more clearly appear from a consideration of the detailed specification heroinafter set forth especially when taken in connection with the accompanying drawings which illustrate present preferred forms which the invention may assume and which form part of the specification.

In brief and general terms, the invention concerns a machine for sewing a glove having finger portions and connecting fourchettes in which the union of these elements is achievedby means of a double line of stitches making the ensemble neater, more attractive, stronger, and more durable.

Further, the invention comprises means associated with the means for oscillating the looper shaft beneath the frame which will cushion the operation thereof whereby the noise of operation is reduced to practically nothing and loose play in the parts is also reduced to a minimum whereby the operation remains at all times highly effective and accurate and substantially noiseless. Preferably; the cushioning means takfifithe forms of. resilientmeansin one'or another forms herein shown to achieve the above;

advantageous results.

The present; preferredforin which-the invention may assume is illustrated: in the drawings;

of which Fig. 1 is aside elevation of the invention applied to a two-needle glove sewing machine.

Fig. 2. is an inverted plan view of the machine. Fig. 3 is a horizontal section taken on the line 33-of Fig. 1.

1 Claim. (Cl. 112-499) Fig. 4 is a partial elevation of the looper casing with shiftable cover.

Fig. 5 is a similar view taken-at right anglesto-that of Fig. 4.

Fig. 6is a partial perspective View of the looper and its shaft.

Fig. '7 is a diagram illustrating in plan the needle paths and the path of the looper beak.

Fig. 8 is a partial elevation of a glove with the fingers sewed with a double line of stitching in accordance withthis invention.

Fig. 9 is a section through a mans glove showing the manner in which the finger portions and the fourchettes are joined.

Fig. 10 is a similar section through a woman's glove.

Fig. 11 is a modified form of the means for controlling and cushioning the movement of the looper-shaft operating mechanism.

It will be seen from the drawings that a machine is provided on which may be sewn a glove with the finger portions joined to the usual connecting fourchettes l l by a double line of stitches as indicated at l3 in Fig. 8.

Figs. 9 and 10 show two different ways in which these portions may be sewed together but in each case a double line of stitching is employed, thus giving a more finished, strong, and durable construction. Besides, many decorative effects may be produced as by use of a different color thread for each line of stitching.

Toachieve this result a'two-needle machine is employed. which has been modified in accordance with this invention.

The machine includes a base plate M from which upwardly extends the usual post 15 having at its upper end the over-hung arm l6 which by structure usual and not shown, houses shafting operated by means of belt ll and pulley 18 to reciprocate the needle bar is on the lower end of which is supported a double needle unit 20. Associated with the needle unit and operated in the usual manner is an arm 2| on the lower end of which is disposed a presser foot 22. The thread A passes from spool 23 over guide and tensioning means 24 and in any suitable manner to the needles 20.

Disposed on the base plate I4 axially in line.

with the needle unit 25 is a looper casing 25, fixed to the base in any desired manner. The top of this casing is open and therein adjacent the top is disposed an oscillatory looper plate 26 supported on a vertical shaft 21 which extends down through the casing and through the base plate 14 to be operated in a manner later described. The looper plate has a passage 28 into which the looper thread T passes extendingv thence around the periphery of the looper plate in a groove 29, until it reaches another passage 36, through which it passes into an open area or curved opening 3| in the center of the plate, to be engaged by the needle thread to effect the sewing operation in the usual manner.

To close the top of the looper casing 25, there is disposed thereover a cap 32 having an aperture 33 therein (Fig. 3), for the needles 20' to pass through. This cap is supported on the upper end of a vertical plate 34 extending up along the front of the casing 25 and bent at right angles at the bottom, as at 35, in the form of a horizontal leg which in a well-known manner is engaged by cam fingers 38 and 3'! mounted on an arm 38, pivoted at 39 to the base plate l4, and operable by means of a knob 40, back and forth to move the cover cap 32 to covering position or to shift it from said position so as to uncover the open top of the casing 25 for giving access to the looper construction beneath. Both the easing 2-5 and the vertical plate 34 may be provided with slots 4! and 42 respectively, through which the looper thread (not shown) may extend in the usual manner, to avoid cramping it in the casing.

To avoid breakage of needles, due to careless pulling of the fabric or thread, before the needles are sufficiently raised, there may be provided a needle guide comprising a plate 60 integral with a bracket 81 secured to the sewing machine head by screw or other fastening means 62.

In order to drive the looper plate 28 and oscillate it through its shaft 21, this shaft has on its lower end, beneath the base plate 14, a pinion 43 (Fig. 2),. Now in the rapid oscillation of the active parts, it is obvious that considerable wear and tear may occur and noise ensue especially after some use. This wear results in loose play and considerable inaccuracy in the operation, if not compensated for. It is therefore desirable, to compensate for the wear and tear and to reduce the objectionable noise to a minimum.

To achieve this, the pinion 43 is engaged by a gear sector '34 on an arm 45 pivoted to the under face of the base M at 46. The other end of arm 45 is pivotally connected to a rock lever 41 extending across beneath the base 14 and connected at 48 pivotally to an oscillatory U,-shaped rock plate 49 which, at the base thereof, is pivoted at 58 to the under surface of the base M. The inner faces of the legs El and 52 of this plate 49 are provided with hard-surfaced wear plates or pads 53. Disposed between and in constant engagement with these wear plates is a drive cam 54 mounted on the lower end of the shaft 55 which extends up through the base l4 and the post ['5 to be connected in any well-known manner (not shown) to the drive mechanism of the machine. In order to effect a smooth operation of these oscillating elements thus described, and to reduce noise therein, and to compensate for the bad effects of loose play between them, I have provided a cushioning or take-up mechanism which will act to counteract these objections. It takes, in one instance, the form of a curved spring 56 connected at one end to the oscillating plate 49 and anchored at the other end by screw 51 to the under side of the base M. It is seen, therefore, that in their oscillation, the parts of the looper shaft drive means are constantly under the compensating influence of this cushioning means or spring 58, which will tend to overcome the objectionable features mentioned.

A modified form of the cushioning means is shown in Fig. 11 in which I have the rock arm 4'! connected to one leg of the rock plate 4, as well as having the drive shaft 55 and the cam 54 engaging the wear plates 53. However, in this form, the right-hand leg 52' is in the form of a spring plate which is anchored to the rock plate 49 by lock nuts 58 on a threaded stem 51 secured to the rock plate 49. The leg 52 is held yieldingly against the cam 54 by means of a spring 58, one end of which bears on the back of the leg 52', while the other end bears against the pivot end 50 of the rock plate 49. A mid-point of this spring 58 is engaged by lock nuts 59 on the stem 51 which passes through said spring 58, as shown. This structure is more adaptable to finer adjustments than the other, and will permit a wider and more effective control of th loose parts and noisy action.

In the operation of the machine, the thread A on the upper head of the machine cooperating with the needles 28', will also cooperate with a thread (not shown), which, in the usual manner, extends up from a spool housed in thebase (not shown), and around the looper casing 25 to enter the aperture 34 near the upper end thereof, and engage the looper plate 25, as described. The rapid oscillation of the looper plate through its shaft by the rocker arm 4'! and associated parts will effect the double line sewing of the finger portions of the glove to the fourchettes, This may be efiected in any one of the relations set forth in Figs. 9 and 10. The noise is reduced to a minimum and loose play developing in their cooperative action is compensated for by the cushioning means shown in one or the other form thereof. The looper mechanism can be repaired, adjusted, and examined at will from below or by operating the knob which removes the cap from the top of the looper casing.

While the invention has been described in detail and with respect to present preferred forms which it may assume, it is not to be limited to such details and forms since man changes and modifications maybe made in the invention without departing from the spirit and scope of the invention in its broadest aspects. Hence it is desired.to cover any and all forms and modifications of the invention which may come within the language or scope of the appended claim.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

In a sewing machine, a looper shaft, a rock arm having a driving connection with said shaft, a U-shaped plate pivoted to the machine frame and connected by one of the two legs thereof to said arm, a cam disposed between and in engagement with said legs, means for driving said cam, and spring means engaging and extending between said U-shaped plates and the frame of the machine to compensate for loose play in the parts to smooth the action and reduce noisy operation.

HELEN GINSBERG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 394,585 Lester Dec. 18, 1888 924,903 Hemleb June 15, 1909 1,571,206 Lautenschlager Feb. 2, 1926 1,613,605 Corrall et al Jan. 11, 1927 2,080,443 Sperberg May 18, 1937 2,088,935 Arnold June 15, 1937 

